Leidos

RF Signal Processing & Communications Engineer

Huntsville, AL (On-site)

Looking for an opportunity to make an impact? At Leidos, we deliver innovative solutions through the efforts of our diverse and talented people who are dedicated to our customers’ success. We empower our teams, contribute to our communities, and operate sustainably. Everything we do is built on a commitment to do the right thing for our customers, our people, and our community. Our Mission, Vision, and Values guide the way we do business. Your greatest work is ahead! Leidos’ Defense RF Systems UAS Portfolio is seeking a RF Signal Processing & Communications Engineer to join our team supporting the development, testing, and evaluation of advanced datalink and communications systems for tactical and airborne platforms. You’ll apply your expertise in RF systems, digital signal processing, and communications theory to conduct performance testing in lab, field, and flight environments. Your work will directly support Department of Defense (DoD) customers by providing in-depth performance and vulnerability assessments of advanced datalink waveforms. As a technical subject matter expert (SME), you’ll also collaborate closely with government stakeholders to inform product development, shape acquisition strategies, and guide technology transitions. If this sounds like the kind of environment where you can thrive, keep reading! Leidos Defense Systems Sector provides a diverse portfolio of systems, solutions, and services covering land, sea, air, space, and cyberspace for customers worldwide. Solutions for Defense include enterprise and mission IT, large-scale intelligence systems, command and control, geospatial and data analytics, cybersecurity, logistics, training, and intelligence analysis and operations support. Our team is solving the world’s toughest security challenges for customers with “can’t fail” missions. To explore and learn more, click here! Are you ready to make an impact? Share your resume with us today! Primary Responsibilities Provide subject matter expertise in RF signal processing and communications with a focus on tactical datalink systems (e.g., CDL, SATCOM, LOS/BLOS). Plan, execute, and support datalink testing activities in lab settings, as well as field and flight test operations. Support the development of test plans, procedures, and technical reports. Analyze and assess waveform performance, resilience, detectability, and vulnerabilities in operationally relevant scenarios. Interface with government stakeholders, test teams, and integration partners to ensure test objectives and system requirements are met. Basic Qualifications BS degree and 8 – 12 years of prior relevant experience or MS in Electrical Engineering, Mathematics, Physics or a related STEM field from an accredited institution with 6-10 years of applicable experience in RF signal processing, communications or Electronic Warfare (EW). Solid understanding of RF theory, including propagation, schematics, RF testing, and link budget analysis, with emphasis on over-the-air signal detection. Proficiency in core signal processing concepts, including Fourier transforms, filtering, noise modeling, and signal modeling. Strong understanding of digital modulation techniques, coding, synchronization, and waveform design. Strong analytical skills with proficiency in MATLAB (object-oriented preferred) or similar tools. Hands-on experience with RF lab equipment such as spectrum analyzers, signal generators, and oscilloscopes. Strong written and verbal communication skills, with the ability to develop detailed technical reports and briefings. Experience with radio testing in lab and field environments, including flight tests. Must possess and be able to maintain a Secret clearance (Top Secret eligibility preferred). Must be a resident of Huntsville, AL or willing to relocate to the Huntsville, AL area. Preferred Qualifications Master’s or Ph.D. degree with an emphasis in electromagnetic theory. Experience with spread spectrum techniques and concepts. Familiarity with signal detection techniques, including energy and feature-based detection. Knowledge of advanced signal analysis techniques such as cyclic autocorrelation and cepstral analysis. Experience with EW testing. If you're looking for comfort, keep scrolling. At Leidos, we outthink, outbuild, and outpace the status quo — because the mission demands it. We're not hiring followers. We're recruiting the ones who disrupt, provoke, and refuse to fail. Step 10 is ancient history. We're already at step 30 — and moving faster than anyone else dares. Original Posting: March 5, 2026 For U.S. Positions: While subject to change based on business needs, Leidos reasonably anticipates that this job requisition will remain open for at least 3 days with an anticipated close date of no earlier than 3 days after the original posting date as listed above. Pay Range: Pay Range $107,900.00 - $195,050.00 The Leidos pay range for this job level is a general guideline only and not a guarantee of compensation or salary. Additional factors considered in extending an offer include (but are not limited to) responsibilities of the job, education, experience, knowledge, skills, and abilities, as well as internal equity, alignment with market data, applicable bargaining agreement (if any), or other law. Leidos Leidos is an industry and technology leader serving government and commercial customers with smarter, more efficient digital and mission innovations. Headquartered in Reston, Virginia, with 47,000 global employees, Leidos reported annual revenues of approximately $17.2 billion for the fiscal year ended January 2, 2026. For more information, visit www.Leidos.com. Pay and Benefits Pay and benefits are fundamental to any career decision. That's why we craft compensation packages that reflect the importance of the work we do for our customers. Employment benefits include competitive compensation, Health and Wellness programs, Income Protection, Paid Leave and Retirement. More details are available here. Securing Your Data Leidos will never ask you to provide payment-related information at any part of the employment application process. And Leidos will communicate with you only through emails that are sent from a Leidos.com email address. If you receive an email purporting to be from Leidos that asks for payment-related information or any other personal information, please report the email to spam.leidos@leidos.com. Commitment and Diversity All qualified applicants will receive consideration for employment without regard to sex, race, ethnicity, age, national origin, citizenship, religion, physical or mental disability, medical condition, genetic information, pregnancy, family structure, marital status, ancestry, domestic partner status, sexual orientation, gender identity or expression, veteran or military status, or any other basis prohibited by law. Leidos will also consider for employment qualified applicants with criminal histories consistent with relevant laws.